In 1991, Barry Buzan made clear that: "The security of human collectivities is affected by factors in five major sectors: military, political, economic, social and environmental". Migration actually plays a role in all of these sectors: in the military, because wars entail forced displacement of people; in the political, because some parties can exploit both racism and issues concerning either the integration of migrants or its lack for gaining votes in the economic. As the exasperated social tensions in a post-Brexit UK have shown, public discourse and campaigns blaming the presence of migrants can lead to hate speeches and violent acts that further polarize a country. Some point in the last decade, the discussion on migration and integration has lost its momentum compared with the fortune that the debate surrounding the migration-security nexus has achieved. Another way through which migration has been constructed as a security concern in both contemporary European societies and other parts of the world.